Cita APA (7th ed.)

Gruber, M. (2007). The book of air and shadows. HarperCollins.

Cita Chicago (17th ed.)

Gruber, Michael. The Book of Air and Shadows. New York, NY: HarperCollins, 2007.

Cita MLA (9th ed.)

Gruber, Michael. The Book of Air and Shadows. HarperCollins, 2007.